what will you be using it for? you need 2.5x on the low end the bushnell tactical should be sweet. I got to compare one to Leupold vx3 and I thought the clarity and color contrast was better in the Bushnell. The sightron is up there though with the S3, but you are stuck with a 3-10 and 6-24 I beleive in the S3 line up. The nice thing about the new 6500 is exposed turrets, at least they are shown that way online. The 6500 I looked at had pull and click turrets under caps. They were clean and precise but not a tactical style turret. Sightron does not offer a tac turret yet, which would be interesting. I think the glass on both would be excellent for the money, resale is farily good on them too. If you do not need more than 60 MOA look at Nikon Monarch 4-16x42, excellent glass and coatings for half the price?